Means spending all the money you have as fast as possible just because you have it. say, if you won the lottery and you went out and just bought anything and everything and didnt need any of it, but bought it just because you "could".

He got his paycheck and blew all the money within 2 hours, he was nigger rich.

(adj.) a derogatory term used to refer to a selfishly extravagant person who has no prospects of ever paying off the debts they incur. (Esp. someone whose sole purchasing power comes from disreputable credit cards or drugs.)

Q: Where the hell did he get those rims? He works at f***ing McDonalds!
A: He copped some credit cards and now he's nigger rich.

(adj.) Giving the appearance of wealth through purchase and use of flashy items such as expensive cars, jewelry, clothes, or other trendy items, without having much money (ie, every expensive item is financed.) The items purchased are "the real thing" but the individual buying them lacks the sufficient income/net worth to truly comfortably afford the items. The individual is usually tapped out financially but due to the items purchased, appears to the general public be wealthy.